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Drafting Implement

Description: Patent for drafting implement, for laying out or plotting curves of different degrees and combining the functions of a plurality of implements into a single implement.
Date: January 3, 1922
Creator: Tanner, John L.
Partner: UNT Libraries Government Documents Department

Lock for Automobiles

Description: Patent for a new inexpensive, secure, and convenient to use lock for automobiles to be secured against theft, or use, while the lock is attached.
Date: May 3, 1921
Creator: Godbey, Walter H., Jr.
Partner: UNT Libraries Government Documents Department

Folding Landing-Gear for Aircraft.

Description: Patent for improvement in folding landing-gears for an aircraft. Once the aircraft is at the sustention in the air, the wheels and attendant parts will fold up into the aircraft.
Date: February 3, 1920
Creator: McCarroll, Frank
Partner: UNT Libraries Government Documents Department

Removable Pass-Book.

Description: Patent for a book with a removable cover that lies flat when open and fits within a pocket. Particularly suited for bank books, also known as passbooks.
Date: May 3, 1921
Creator: Exline, Marcus P.
Partner: UNT Libraries Government Documents Department
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